baber/WOPTO huggingface dataset:
Patent JP-S62176923-A (JP)
Title: Preparation of goethite
Inventor: ISHIKAWA TSUNEO
IPC: H01F1/11
Filed: 1986-01-29
Abstract: PURPOSE:To obtain acicular particles of goethite suitable as a material for magnetic powder having superior characteristics for magnetic recording medium with high efficiency by oxidizing a suspension contg. precipitate of ferrous hydroxide obtd. by the partial neutralization of aq. soln. of ferrous salt, adding an acidic substance when the suspension attains a specified percentage of oxidation, and continuing further oxidation. CONSTITUTION:(1) Aq. suspension contg. ferrous hydroxide formed by the precipitation of a part of the contained Fe is obtd. by reacting below an equivalent amt. of alkali to the amt. of the ferrous salt with aq. soln. of the ferrous salt. (2) Then, goethite is obtd. by oxidizing the aq. suspension. In the above-described stage of the process, an acidic substance is added when the percentage of oxidation of the aq. suspension after the beginning of oxidation attains 20-65%, then the oxidation is continued further. Several kinds of inorg. or org. acid may be usable as the acidic substance, but HCl, H2SO4, acetic acid are preferred from industrial view point. Preferred amt. thereof to be added is 0.5-5mol basing on the amt. of partially neutralized ferrous ion.
Patent JP-H09187140-A (JP)
Title: Apparatus for driving cutter blade of lawn mower
Inventor: YAMASHITA TADASHI
IPC: A01D34/76
Filed: 1996-01-05
Abstract: PROBLEM TO BE SOLVED: To make an apparatus for driving cutter blades of a lawn mower compact with a small height. SOLUTION: This apparatus 34 for driving cutter blades of a lawn mower is composed of a driving pulley 33, driven pulleys (25a) and (25b), idler pulleys (37a) and (37b), a tension pulley 36 and a belt 38 and obtained by forming the top surface of an upper wall 19 of a cutter housing 5 into a substantially flat surface, arranging the driven pulleys (25a) and (25b), the idler pulleys (37a) and (37b) and the tension pulley 36 in the same plane parallel to the top surface of the upper wall 19, passing the belt 38 through either (25b) of the driven pulleys (25a) and (25b), then winding the belt 38 around the idler pulleys (37a) and (37b), reversing the belt 38, engaging the belt 38 with an engaging surface on the opposite side of the other driven pulley (25a), winding the belt 38 around the driven pulley (25b) so as to rotate in the opposite direction,  arranging the belt 38 so as not to intersect the respective pulleys in the same plane and enabling the regulation in the transverse direction of the position of the idler pulley (37a) in relation to the belt 38.
Patent JP-H03254916-A (JP)
Title: Manufacture of bent eaves gutter
Inventor: MURAKAMI SEIICHI
IPC: B29C45/14
Filed: 1990-01-26
Abstract: PURPOSE:To simplify the structure of an injection mold by a method wherein a half part of eaves gutter parts is formed by cutting an eaves gutter into a V-shaped state to an axial direction of the eaves gutter, confronting end faces of both the half parts of the eaves gutter parts are confronted with each other, set up within an injection mold and injection molding is performed on a confronted part. CONSTITUTION:An eaves gutter 1 is cut in a V-shaped state so that a cut face is tiled to an axial direction of the eaves gutter, half parts 2 of eaves gutter parts dividing into both sides are formed. Confronting end faces of both the half parts of the eaves gutter parts are confronted with each other, which is set up within an injection mold 3 under this state, injection molding is performed on a confronted part between both the half parts 2 of eaves gutter parts and both the half parts 2 of eaves gutter parts are unified. With this construction, since a joining time is short, joining accuracy is favorable and it is good that injection molding is performed on only the confronted part, structure of an injection mold can be simplified.
Patent JP-S62176277-A (JP)
Title: Image coding/decoding device
Inventor: MURAKAMI ATSUMICHI
IPC: H03M7/38
Filed: 1986-01-29
Abstract: PURPOSE:To use efficiently a transmission line and to clam down moving by a transmitting person in case the motion is drastic by monitoring the moving quantity corresponding to the information generating quantity of an own station by means of a meter by the transmitter. CONSTITUTION:An input video signal 1 is sampled, quantized by an A/D converter 2, made into a digital signal 3 and stored into a frame memory 4. A user issues the instruction how the picture element is decreased in accordance with the operation mode, to a picture element decreasing controller 5. A mapping converting circuit 8 mapping-converts the output of a counter 6 in accordance with the output from the controller 5 and reads the contents of the frame memory 4 with the designated format. By detecting the moving quantity of an image signal with a movement detecting circuit 12, monitoring it with a meter 15 and coding it with a coding circuit 16 in accordance with the moving quantity, the optimum coding processing can be executed.
Patent JP-H09209589-A (JP)
Title: Method of setting product group in building to be constructed
Inventor: TAKEDA MASAKADO
IPC: E04H5/02
Filed: 1996-02-02
Abstract: PROBLEM TO BE SOLVED: To improve working efficiency for setting in a building the modules into which unit products such as equipment, pipings, valves are integrated. SOLUTION: Products 2, 3 installed relatively above an area D in a building A are integrated into a first module 10 in an assembling factory before being carried to the area D and products 2, 5 to be set under the area D are integrated into a second module 11 in an assembling factory. In this case, a mutually positional relationship of the products is modulated while kept in a positional relationship similar to a setting situation at a site. The first and second modules 10, 11 combined on a suspending balance 4 are carried into the area D. The first module 10 is moved up by a jack 12 together with the suspending balance 4 to be set to the side of a ceiling built up before setting the first module while the second module 11 is suspended from the suspending balance 4 via a chain block 6 to be set to the side of a floor B.
Patent JP-H11220393-A (JP)
Title: Semiconductor device
Inventor: NUNOKAWA HIDEO
IPC: H03K17/06
Filed: 1998-01-29
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device having an A/D converter capable of operating with a lower power consumption. SOLUTION: This semiconductor device has an A/D converter including a sample-and-hold circuit 10A and a gate boosting circuit 18A which boosts the gate voltage of an analog switch 10a included in the sample holding circuit 10A. The gate boosting circuit 18A has a boosting part 11 which boosts a sampling clock pulse controlling the analog switch 10a, a clamp circuit 13 which supplies a current to the ground to prevent the sampling clock pulse from being boosted above a specific value, and a differentiating circuit 17 which operates the clamp part 13 only the moment the sampling clock pulse goes up to a high level.
Patent JP-S53102533-A (JP)
Title: Device for supporting rotary shaft of rotary window for vehicle
Inventor: INABAYASHI AKIRA
IPC: F16C25/00
Filed: 1977-02-19
Abstract: PURPOSE: To simplify the structure and mounting work of a device for supporting the rotary shaft of a rotary window by constructing to ajuust the frictional force applied to the rotary shaft of the device for supporting the rotary shaft of the window from upside of the window frame. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H04256790-A (JP)
Title: Washing machine
Inventor: NAKAMURA YOSHIYUKI
IPC: D06F33/02
Filed: 1991-02-08
Abstract: PURPOSE:To always operate the machine by a water level corresponding to the cloth quantity, and to satisfy each performance of washing, rinsing and dehydration by executing the cloth quantity detection again before starting a reserved operation, and executing the control so as to execute washing in accordance with the detected cloth quantity. CONSTITUTION:When a reserved operation is set by a reserved time setting means 13 and the operation is started by turning on a start switch 14, a control means 4 feeds water up to a water level for detecting the cloth quantity by opening a feed water valve 8 by a feed water valve driving means 7. Subsequently, by a pulsator driving means 9, a pulsator 10 is driven and rotated for a prescribed time, and by a cloth quantity detecting means 5, the cloth quantity in a washing tank 2 is detected and water is fed up to a water level corresponding to the cloth quantity. Next, the machine waits and holds by a timer 12 until the operation start time to the set washing end time. When the operation start time comes, the cloth quantity detection is executed again, whether the present water level is proper to the detected cloth quantity or not is detected by a water level detecting means 1, and in the case the water level is low, the pulsator 10 is rotated by feeding water up to the proper water level, and the machine goes into a washing process.
Patent JP-S55109752-A (JP)
Title: Electronic control system for compensating air to fuel ratio in high altitude
Inventor: NOMICHI AKIO
IPC: F02M23/04
Filed: 1979-02-16
Abstract: PURPOSE: To adjust the ratio of air to fuel in high altitude by changing the supply of secondary air in response to the atmospheric pressure and enging temperature, in a system for supplying secondary air to the inlet system of the internal combustion engine.  
     CONSTITUTION: Secondary air paths 3, 4 are in communication with an inlet system at the downstream of a benturi 2. These paths 3, 4 are provided with an orifice device 5 which opening is controlled by a control circuit 6, and an air valve 8 to which the negative pressure within a negative pump 9 is transmitted via a surge tank 10. The device 5 comprises a circuit 6 to which a signal from a sensor 1 for measuring atmostpheric pressure and water temperature is input, and a pulse motor 51 for adjusting the opening of the orifice 52. Solenoid valves 12, 13 are provided in a path communicating with a negative chamber 82 of the air valve 8 to adjust the level of the negative pressure. Then, these solenoid valves 12, 13 are opened or closed by a signal from a pressure difference sensor 7 for detecting the pressure difference between the air pressure and the pressure at the benturi 2. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H08212032-A (JP)
Title: Picture generating system
Inventor: SATO JUNICHI
IPC: G06F3/0484
Filed: 1995-02-06
Abstract: PURPOSE: To improve the efficiency of operation such as the preparation of a new picture, and the correction or change of an existing picture by providing a processing means for generating a picture while referring to a picture pattern defining table, a processing-sorted item defining table and an item-sorted attribute defining table. CONSTITUTION: When a user for a transaction picture preparing system inputs a picture number '0001' to the system, the system refers to a transaction-sorted item defining table 310 to retrieve the same picture number and checks a retrieved transaction name 32, a picture pattern 33 and the sort and display position of each input item at first. Then the system retrieves the same picture pattern 21 and checks a field position while referring to the picture pattern defining table 27. Then attribute information indicated by display items 34 to 39 and the item-sorted attribute defining table is set up in the checked field position and completed picture data are displayed. When a picture number '0002' is inputted to the system, its corresponding picture is similarly displayed.
Patent JP-S54111585-A (JP)
Title: Treatment of waste cv cable
Inventor: SHIMOMURA TAMAZOU
IPC: B29B11/00
Filed: 1978-02-20
Abstract: PURPOSE:To separate and recover the conductor and the insulator from waste CV cable, by cutting the cable into convenient lengths, heating the cut cable to soften the insulator made of cross-linked polyethylene, and quenching the insulator. CONSTITUTION:Waste CV cable is cut into lengths convenient for handling, and heated in an oven to a temperature at which the cross-linked polyethylene insulator starts to soften, i.e. about 130-160 deg.C. The heted CV cable is quenched below the brittle point of the cross-linked polyethylene (-70 deg.C) by dipping in a coolant, e.g. liquefied nitrogen. The embrittled cross-linked polyethylene is crushed with a hammer, etc., and removed from the conductor. The curshed polyethylene can be separated from the conductor by the density difference, etc.
Patent JP-S62178772-A (JP)
Title: Ignition device for internal combustion engine
Inventor: KIDO YOSHIO
IPC: F02P3/12
Filed: 1986-01-31
Abstract: PURPOSE:To remove dispersion of an ignition timing, restrict increase in a required breakdown voltage, and prevent an deterioration of output and fuel consumption, by providing a map of advance angle values to be corrected in accordance with a battery voltage with an electronic control circuit for thereby correcting the ignition timing based on a change of the battery voltage. CONSTITUTION:A map of advance angle values to be corrected in advance according to a battery voltage is provided with an electronic control circuit ECU1, the map being used for correcting a result of calculation of the electronic control circuit ECU1 for calculating an ignition timing in accordance with an operation condition of an engine based on data from a rotating angle sensor 5, a suction pressure sensor 6 and water temperature sensor 7 which detect the operation conditions. An advancing angle value to be corrected according to a battery voltage in a prescribed condition is added to the calculated value to use the added value as a final ignition timing determined by the ECU1. Therefore, an ignition timing is corrected according to a change of a battery voltage, whereby dispersion of an actual ignition timing at which discharging is effected is removed, an increase in a requested breakdown voltage is restricted, and deterioration of engine output, and fuel consumption, melting of catalyst due to an increase in exhaust gas and knocking are prevented.
Patent JP-S55110276-A (JP)
Title: Method and apparatus for development
Inventor: ARAO KOUZOU
IPC: G03G15/09
Filed: 1979-02-15
Abstract: PURPOSE: To prevent the decrease in image density owing to moisture absorption of the developer on the exposed surface of a developer support means under a high- humidity environment by supplying the developer to a latent image holding means and developing the latent images then removing the remaining developer on the developer support means.  
     CONSTITUTION: Toner 4 is defined to the specified thickness by a doctor blade 3 at the A point on a sleeve 2 and develops the electrostatic images on a photosensitive or recording medium drum 1 at the proximate portion B by being restrained by adhesion force, electrostatic attraction force, magnetic force, etc. A sleeve 2 begins to rotate backward when it rotates by more than the angle AOC (C is the point of entry of the toner layer into a hopper vessel 5) allowing to the exposed AC and  ends and stops backward rotation when the toner removed part of the sleeve 2  comes to cover the exposed part AC, whereby the toner layer is removed. Since this  eliminates the thinly spread toner layer making direct contact with moist air, the  degradation in the density of the mages may be suppressed. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H07211911-A (JP)
Title: Insulated gate type field effect transistor
Inventor: KIN ITSUCHIYUU
IPC: H01L29/78
Filed: 1994-01-19
Abstract: PURPOSE:To expand a depletion layer formed below a buried insulating film in a substrate having an SOI structure by preventing the influence of a drain potential on the channel area of a field effect transistor so as to reduce the output capacitance of the transistor. CONSTITUTION:Since a semiconductor substrate 1 is formed in (n) type which is the same conductivity type as that of a source area 5, the intrusion of a drain potential distribution into a channel area 7 can be prevented basically. In addition, by forming a p-type high-resistance semiconductor area 4 which is the opposite conductivity type to that of the substrate 1 adjacently to a buried insulating film 2 on the drain side in the substrate 1, a depletion layer can be sufficiently expanded in this area in the substrate 1 so as to reduce the output capacitance of a field effect transistor.
Patent JP-2000216635-A (JP)
Title: Mixer circuit
Inventor: MARUHASHI KENICHI
IPC: H03D7/00
Filed: 1999-01-27
Abstract: PROBLEM TO BE SOLVED: To provide a mixer circuit to which a bias can be applied and from which an excellent conversion loss can be obtained with a comparatively low local oscillator(LO) power. SOLUTION: A cathode of a diode 1 is connected to an anode of a diode 2, and an anode of the diode 1 is connected to a cathode of the diode 2 via two capacitors 16, 17 connected in series. The capacitors 16, 17 block a DC, Thus, when a bias voltage is applied to a bias input terminal 23, the bias voltage is applied to the diodes 1, 2. An excellent conversion loss can be obtained by controlling this bias voltage.
Patent JP-H06244684-A (JP)
Title: Method and circuit device for generating dummy random number row
Inventor: ERUUIN HESU
IPC: H03K3/84
Filed: 1994-01-17
Abstract: PURPOSE: To generate a pseudo random number sequence having further high certainty by deciding whether or not the output of bit data should be operated in at least one switching state of a shift register device. CONSTITUTION: A switching device T for operating the passing connection of a pseudo random number sequence P of bit data generated in a final shift register cell (z) with an output terminal A or not related with a control signal aA is connected with the output terminal of a feedback connected shift register device. This control signal aA is generated by a circuit F for realizing a non- linear logical function (h) in this case. This circuit F decides whether or not the switching device T should connect the pseudo random number sequence P applied to the input terminal with the output terminal A related with one or more switching states of the shift register device S. Thus, the circuit F is connected with the output terminal of the shift register cell which is preliminarily decided at the input side.
Patent JP-H02197980-A (JP)
Title: Ic card reading/writing device and ic card device
Inventor: HAYASHI NAOKI
IPC: G06K17/00
Filed: 1989-01-27
Abstract: PURPOSE:To read and write plural IC cards having different standards of clock frequencies by discriminating whether a clock signal is correct or not to the IC card put into an IC card reading/writing device and then supplying a clock signal of another clock frequency in case the clock signal applied to the IC card is not correct. CONSTITUTION:When a frequency lower than a prescribed level is supplied to an IC card 10, the card 10 words more slowly than a prescribed level and the first three bits of a reset answer signal are increased than the usual length. Thus a discriminating part 118 recognizes the difference of length and decides whether the card 10 is normally working or not. If not, an IC card reading/ writing device 11 turns off a clock signal switching part 112 and turns on a clock signal switching part 113 to select a clock signal generating part 117. Thus plural card 10 of different clock frequencies can be read and written.
Patent JP-S54110761-A (JP)
Title: Automatic frequency following type band pass filter
Inventor: NOGUCHI TOYOTA
IPC: H03H11/04
Filed: 1978-02-17
Abstract: PURPOSE:To obtain an automatic frequency following type band pass filter by securing a coincidence between the central frequency and the higher-energy frequency among the input frequencies. CONSTITUTION:The signals sent from input terminal 6 are amplified through amplifier 7 and the led to variable frequency band pass filter (VBPF) 8 and 9. The central frequency at the fixed control voltage V is set up previously for VBPF 8 and 9 to constitute the band pass filters featuring such characterisitcs that the phase is inverted centering on the passinb central frequencies fc8 and fc9. The output difference between VBPF8 and 9 is amplified through differential amplifier 12 to be drawn out in the form of the output. In the other hand, the output of 8 and 9 are applied to differential amplifier 13 via envelope curve detector 10 and 11. Then the output of amplifier 13 is smpplied to up-down counter 17 to control the operation of the corresponding counter. Thus, V can be varied to satisfy fin=fc.
Patent JP-2000215425-A (JP)
Title: Magnetic head and its production
Inventor: OKAWA TAKAKO
IPC: G11B5/60
Filed: 1999-01-27
Abstract: PROBLEM TO BE SOLVED: To remove redeposit protrusions in a short time by forming nonlinear rails in a levitation face by etching, protecting at least each magnetic element with an organic film or a thin film and rubbing off the redeposit from not only the side walls of the rails but also the levitation face. SOLUTION: A head block 14 is polished to form a levitation face 2, a protective film 15 is formed on the levitation face 2 and a rail pattern of a resist 16 is transferred to alumina-titanium carbide 13 by etching using the resist 16 as a mask material. The redeposit sticks again to the alumina-titanium carbide 13 and to the entire side wall of the resist 16. The resist 16 is then removed. Though part of the redeposit is removed together with the resist 16, the other remains on the side walls of the rails and protrudes from the levitation face 2. A resist for protecting each magnetic element 5 from scratch during the removal of the redeposit is formed on the magnetic element 5 and the redeposit is removed.
Patent JP-H03227809-A (JP)
Title: Spherical object feeding device
Inventor: MOMOSE HIROTSUNE
IPC: B65G29/00
Filed: 1990-01-30
Abstract: PURPOSE:To reduce the number of parts and to improve maintaining convenience by reciprocatively rotatably locating a rotary member in a casing and shutting off a passage through protrusion and retraction of a pin in and from a ball passage through the reciprocating rotation, in a prize ball. feeding device for a PACHINKO (Japanese pin ball game) machine. CONSTITUTION:Through excitation of a solenoid 7, a rotary bracket 3 is rotated in the direction of an arrow mark (a) around an axle 4. Through demagnetization of the solenoid 7, the rotary bracket 3 is rotated in the direction of an arrow mark (b) through the force of a tension spring 8. Through reciprocating rotation in the directions of the arrow marks (a) and (b) of the rotary bracket 3, pins 5 and 6 are alternately protruded in a passage 2 to shut off the passage 2, and the passage of a ball is blocked. This constitution reduces the number of parts, and decreases a space. Further, a wear part is reduced and maintenance, e.g. lubrication, is facilitated.
Patent JP-H11199323-A (JP)
Title: Dummy wafer
Inventor: SUGIHARA TAKAOMI
IPC: B28B1/30
Filed: 1998-01-14
Abstract: PROBLEM TO BE SOLVED: To provide a dummy wafer comprising a CVD-SiC molded product scarcely bent, having excellent corrosion resistance and used in a process for cleaning the inside of a chamber for plasma etching, etc., and in a process for thermally treating a product wafer in a diffusion oven, a vertical oven, etc. SOLUTION: This dummy wafer comprises a CVD-SiC molded product which is obtained by forming a SiC coating film on the surface of a substrate by a CVD method and subsequently removing the substrate and which is provided with crystal properties comprising a SiC (111) surface half value width 2θ of 0.18-0.32 deg. measured by X-ray diffraction and crystal surface/SiC (111) surface diffraction peak strength ratios of I(200)/(111), I(220)/(111), I(222)/(111) and I(311)/(111) of 0-0.4, 0-1.0, 0-0.08 and 0-0.8, respectively.